Our senior is leaving

Our senior is leaving us and We have Planned everything for him. We will book a tour west coast tours from san francisco for him. Because she is very hobbyist of traveling. Which is her fashion professional and passion everything is traveling for him. We all thought that we should give him this gift of to go wchih will be remembered throughout his life But we do not know anything about these places which would be the best destination for this. We are blanked about these places. Guys, please help us. We can make memorable lit her travel if you tell us good places and share your experience.